“This was @brielarson‘s first day ever as Captain Marvel… And here’s a quick video of her greeting the cast for the first time,” the Russo Brothers tweeted Monday.

Larson filmed her Endgame scenes before Captain Marvel, which provided the unique challenge of portraying a fleshed-out superhero before going through her formative origin story.

The fascinating behind-the-scenes clips didn’t stop there.

“Here’s some BTS from Joe’s iPhone, walking through and planning out some of the shots for Hawkeye’s time travel journey,” the Russo Brothers tweeted.

Here we have an unrecognizable Downtown Atlanta posing as Tokyo for filming.

Those kids who ask for the Hulk’s autograph — are really family members of the Russo Brothers.

We’ve got some more Russo family cameo’s here. That’s Joe’s daughter, Lia, Anth’s son, Julian, and our nephew, Augie. Lia loved the memes of her dabbing when this first came out… well, maybe love is a strong word… #AvengersAssemblepic.twitter.com/ggT5LBVE0M